LP8551TLE/NOPB

LP8551TLE/NOPB图片1
LP8551TLE/NOPB图片2
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LP8551TLE/NOPB概述

LED照明驱动器

The LP8551 is a white LED driver with integrated boost converter. It has four adjustable current sinks which can be controlled by PWM input or with I2C-compatible serial interface.

The boost converter has adaptive output voltage control based on the LED driver voltages. This feature minimizes the power consumption by adjusting the voltage to lowest sufficient level in all conditions.

LED outputs have 8-bit current resolution and up to 13-bit PWM resolution to achieve smooth and precise brightness control. Proprietary Phase Shift PWM control is used for LED outputs to reduce peak current from the boost converter, thus making the boost capacitors smaller. The Phase Shifting scheme also eliminates audible noise.

Internal EEPROM is used for storing the configuration data. This makes it possible to have minimum external component count and make the solution very small.

The LP8551 has safety features which make it possible to detect LED outputs with open or short fault. As well, low input voltage and boost overcurrent conditions are monitored, and chip is turned off in case of these events. Thermal de-rating function prevents overheating of the device by reducing backlight brightness when set temperature has been reached.

LP8551TLE/NOPB中文资料参数规格
技术参数

输出接口数 4

输出电压 40 V

输出电流 450 mA

静态电流 4.00 mA

调节输出数 1

过温保护 Yes

拓扑结构 Boost

工作温度Max 85 ℃

工作温度Min -30 ℃

电源电压 2.7V ~ 22V

输入电压 2.7V ~ 22V

封装参数

安装方式 Surface Mount

引脚数 25

封装 WFBGA-25

外形尺寸

封装 WFBGA-25

物理参数

工作温度 -30℃ ~ 85℃ TA

其他

产品生命周期 Active

包装方式 Tape & Reel TR

制造应用 背光

符合标准

RoHS标准 RoHS Compliant

含铅标准 Lead Free

数据手册

LP8551TLE/NOPB引脚图与封装图
LP8551TLE/NOPB引脚图
LP8551TLE/NOPB封装图
LP8551TLE/NOPB封装焊盘图
在线购买LP8551TLE/NOPB
型号: LP8551TLE/NOPB
制造商: TI 德州仪器
描述:LED照明驱动器
替代型号LP8551TLE/NOPB
型号/品牌 代替类型 替代型号对比

LP8551TLE/NOPB

TI 德州仪器

当前型号

当前型号

LP8551TLX/NOPB

德州仪器

完全替代

LP8551TLE/NOPB和LP8551TLX/NOPB的区别

锐单商城 - 一站式电子元器件采购平台